EIP-2026-112495

PRE-CVE

Support Board 3.3.4 - 'Message' Stored Cross-Site Scripting (XSS)

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-112495. PoCs published by John Jefferson Li.

AI-analyzed exploit summary This exploit demonstrates a stored XSS vulnerability in Support Board 3.3.4 by injecting a malicious script into the 'message' parameter via an AJAX POST request. The payload bypasses basic input filtering using mixed case and URL encoding.

Description

Support Board 3.3.4 - 'Message' Stored Cross-Site Scripting (XSS)

Exploits (1)

exploitdb WORKING POC
by John Jefferson Li · textwebappsphp
https://www.exploit-db.com/exploits/50419

This exploit demonstrates a stored XSS vulnerability in Support Board 3.3.4 by injecting a malicious script into the 'message' parameter via an AJAX POST request. The payload bypasses basic input filtering using mixed case and URL encoding.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Support Board 3.3.4
Auth required
Prerequisites: Valid session cookie · Access to a conversation ID
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026